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Cement vertical mill finish grinding technology research and Application

At present, grinding equipment of large-scale problems have been proposed, large scale is a sign of grinding equipment level, represents the highest level of the industry. So foreign mill suppliers, such as Loesche, Pfeiffer are the vertical roller mill millstone do great. Laixi Fu company do vertical mill millstone maximum diameter is up to 6.9 meters, the highest capacity 1200t/h. but grinding technology equipment development still faces some key problems, such as: high moisture material how wear? Slag, ore and other high abrasive how to solve the problem of stable production? Fly ash and high mobility material to wear more fine?
Liu Zihe said, the main technology of cement grinding technology development process of ball mill, roller press + ball mill and vertical roller mill three, single power consumption, the highest for the 40-45kWh/t ball mill, roller press + ball mill for 30-35kWh/t, can be controlled in 25~30kWh/t. vertical roller mill
With the technology development of vertical mill, vertical roller mill grinding cement accounted for the ratio in the world has changed: in 2004~2005, the vertical mill grinding cement accounted for the ratio in the world for 26%, 2008~2009 for 61% years, the rationality of 2011~2012 years reached 83%.2009 Toure Saif of Germany’s International Conference on expert opposition mill grinding cement must also support this change.

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